Control mechanism for an automatic telephone dialer or the like



June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet l INVENTOR. JAMES K/LBURG' ATTORNEY J. KILBURG CONTROL. MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE 1948 June 26, 1956 19 Sheets-Sheet 2 Original Filed Nov. 30,

m m m m J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC June 26, 1956 TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 3 INVENTOR.

JAMES K/LBURG A TTOR/VEY June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 4 Wk .8 m

QR hm INVENTOR. JAMES K/LBURG u wata @ok ATTORNEY June 26, 1956 J. KILBURG 2,752,427

CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 5 INVENTOR. JAMES K/LBURG ATTORNEY J n 1 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 6 1N VEN TOR.

JAMES K/LBURG June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALEIR OR THE LIKE Original Filed Nov. 50, 1948 19 Sheets-Sheet 7 INVENTOR.

2 JAMES K/LBURG ATTORNEY June 26, 1956 LB CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 8 INVENTOR. JAMES K/LBURG' 42 M Z ATTORNEY n 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 9 237 i I I 1| 1 INVENTOR.

JAMES K/LBURG J n 1 J. KILBURG CONTROL- MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 10 INVENTOR.

JAMES K/LBU/PG ATTORNEY J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC June 26, 1956 TELEPHONE DIALER OR THE LIKE 1948 19 Sheets-Sheet 11 Original Filed Nov. 30,

mhw

mRN

6 MW mew E L VI WK E M J A J Y/n B Z QNN. mwN R NN June 26, 1956 J. KILBURG 2,752,427

CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 12 INVENTOR.

"I h JA MES K/LBUl-PG BY %A4Ez K ATTORNEY June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Ncv. 30, 1948 19 Sheets-Sheet 13 INVENTOR.

JAMES K/LBURG ATTORNEY June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 14 IN VEN TOR.

JAMES K/LBURG ATTORNEY KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 June 26, 1956 19 Sheets-Sheet 15 INVENTOR.

JAMES K/LBURG M N O June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR Original Filed Nov. 50, 1948 .I'Ifll' THE LIKE l9 Sheets-Sheet l6 INVENTOR. JAMES KILBURG ATTORNEY June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 17 INVENTOR.

JAMES K/LBURG June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALEJR OR THE LIKE Original Filed Nov. 30, 1948 19 Sheets-Sheet 18 INVENTOR.

J4 MES K/L BURG ATTORNEY June 26, 1956 J. KILBURG CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DIALER OR THE LIKE Original Filed Nov. 50, 1948 19 Sheets-Sheet 19 INVENTOR.

JAMES K/L BURG rates CONTROL MECHANISM FOR AN AUTOMATIC TELEPHONE DEALER OR THE LIKE 17 Claims. (Cl. 179-90) This invention relates to control mechanism for devices for effecting automatic dialing of telephones. Such devices are designed for facilitating and increasing the speed of the telephone dialing operation and also, incidentally, for increasing the usefulness and the life of the telephone instrument and all mechanisms associated with the function of selecting a circuit by the dialing method. The present application is a division of my copending application entitled "Automatic Telephone Dialer, filed November 30, 1948, Serial No. 62,720, new Pat. No. 2,656,417.

The device of said co-pending application embodies essentially, a mechanism to be associated with a conventional telephone of the dial type. The mechanism includes a finger-like member insertable in one of the finger openings of the telephone dial or finger wheel and means to revolve and control the revolving movement of the finger member to accomplish selection or dialing of predetermined numbers through the conventional telephone circuits.

Said device also provides three distinct mechanisms for selecting the telephone number to be dialed, each of which mechanisms controls the dialing of the selected number through a single common control mechanism which forms the subject matter of the present invention.

The common control mechanism includes a clutch for transmitting power from a motive source to the telephone dial. Bearing in mind that in order to dial a selected telephone number of seven digits such as MA l-4627, the dial must be actuated seven successive times each for a different fraction of a cycle, the control of this clutch mechanism becomes vital to the successful performance of the dialing mechanism. One object of this invention is to provide a clutch control meeting such dialing requirements and having the further advantage that it engages the clutch only for the required fraction of each cycle r rather than for a complete or zero cycle for each digit. Another object is to provide an automatic clutch control that will cause engagement of the clutch only for the required number of fractional cycles so that upon dialing a number of less than seven digits, the clutch control will cease operation after the last digit is set up even though it be a single digit as for calling Operator.

In the device of this invention the dial control clutch is influenced by a set of selector dogs; seven groups of ten dogs each. The clutch carries a cylinder or barrel with seven sets of spirally arranged perforations and a selected dog of each group may be conditioned to advance into its complementary perforation to disengage the clutch at the fraction of a cycle required to dial the selected digit. There may, of course, be more or less than seven groups of dogs, seven being chosen as most telephone numbers are limited to seven digits.

In order to insure that the seven groups of dogs will operate separately and successively, a second barrel en-' closes the first barrel and has seven spirally arranged openings; one for each group of dogs. Rotation of the second or outer barrel, therefore, permits the selected dog of each atent group to advance to the inner or clutch control barrel only in its prearranged successive order.

With this main clutch control mechanism, three separate number selecting mechanisms may be employed with the same dial control mechanism. It is necessary that any number selecting mechanism include means selectively to control the advancing movement of the selector dogs to the end that one dog in each set representing a number from one to zero be permitted to advance to a position where it will act with the clutch control barrel in determining the extent of dialing movement imparted to the telephone dial.

One of the number selecting mechanisms includes a web or paper-like tape slidable between the dogs and the barrel. Perforations in this tape at any given position, will permit the selected dogs to advance toward their controlling positions. The paper-like Web has the advantage that it also serves as a telephone directory and a portion of it can be exposed through a sight opening to display a subscribers name while the code-like perforations in another portion of the same web or tape act to control dialing of the same subscribers number. The device also includes means for punching said tape and labeling it to create the directory; all such means being conveniently and compactly arranged in a single device of convenient size.

A second number selecting mechanism comprises a bank of ten keys numbered and lettered in the manner of the finger openings in a standard telephone dial. These keys are useful in setting up a number not included on the paper tape directory and they provide a telephone dialing device operable by a key bank wherein any number to be dialed may be set up by the keys and will remain so set up until it is purposely cleared. One of the advantages of such an operation is that the number may be called repeatedly if the line is busy simply by closing the main circuit or depressing the main dialing key of the device.

A third number selecting mechanism comprises a bank of keys any one of which will, upon being depressed, set up an entire telephone number to be dialed. Such an arrangement is particularly useful for numbers most frequently called or for numbers which might be called in an emergency such as the police or fire department.

There are further specific objects and advantages of the invention which will best be understood and appreciated from a detailed description of a device which embodies the invention and such a description ensues with reference to the accompanying drawings wherein a preferred form of the invention is disclosed.

In the drawings:

Fig. 1 is an isometric schematic view illustrating some of the basic mechanical principles involved in the present invention.

Fig. 2 is an isometric View with parts broken away of a portion of the mechanism employed in keyboard dialing.

Fig. 3 is a similar view of a portion of the mechanism employed in code-key dialing.

Fig. 4 is a side elevation of a device embodying the present invention with the case broken away and with some of the mechanical parts illustrated in section.

Fig. 4a is a fragmentary detail in plan of a part of the top of the device illustrating the appearance of an indicating means.

Fig. 5 is a plan view of the same device with the case removed and with some parts broken away and some parts illustrated in section.

Fig. 6 is a view in rear elevation of the same device with the case broken away and with some of the mechanical parts broken away and some shown in section.

Fig. 7 is a fragmentary view in plan with parts in section of the motor and drive transmission of the device. 

